Rosa hybrid variety denomination &#39;Poulcas036&#39;

ABSTRACT

A new garden rose plant of the Compact Floribunda class which has abundant, yellow and red bi-color flowers and attractive foliage. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.

BOTANICAL DESIGNATION

Rosa hybrid

VARIETY DENOMINATION

‘Poulcas036’

SUMMARY OF THE INVENTION

The present invention constitutes a new and distinct variety of gardenrose plant which originated from a controlled crossing between thefemale seed parent, an unnamed seedling, and the male pollen parent,also an unnamed seedling.

The two parents were crossed during the summer of 2003 and the resultingseeds were planted in a controlled environment in Fredensborg, Denmark.The new variety, named ‘Poulcas036’, originated as a single seedlingfrom the stated cross.

The new variety may be distinguished from its male pollen parent andfemale seed parent primarily by flower coloration and growth habit.

The objective of the hybridization of this rose variety was to create anew and distinct variety for garden use with unique qualities, such as:

1. Uniform and abundant yellow and red bi-color flowers;

2. Vigorous, but compact growth when propagated both as a budded roseand on its own roots;

3. Exceptional disease resistance.

This combination of qualities is not present in previously availablecommercial cultivars of this type, known to the inventor, anddistinguish ‘Poulcas036’ from all other varieties of which we are aware.

As part of the rose development program, Mogens N. Olesen germinated theseeds from the aforementioned hybridization during winter of 2003 andconducted evaluations on the resulting seedlings in a controlledenvironment in Fredensborg, Denmark. ‘Poulcas036’ was selected in thespring of 2004 by the inventor as a single plant from the progeny of theaforementioned hybridization.

Asexual reproduction of ‘Poulcas036’ by traditional budding and rootedcuttings was first done by Mogens N. Olesen in the nursery inFredensborg, Denmark in July, 2004. This initial and other subsequentasexual propagations conducted in controlled environments havedemonstrated that the characteristics of ‘Poulcas036’ are true to typeand are transmitted from one generation to the next.

DESCRIPTION OF THE DRAWING

The accompanying color illustration shows as true as is reasonablypossible to obtain in color photographs of this type, the typicalcharacteristics of the buds, flowers, leaves, and stems, of‘Poulcas036’. Specifically illustrated in the drawing are flowers atvarious stages of development, flower in parts, leaves, and stems.

DETAILED DESCRIPTION OF THE VARIETY

The following is a description of ‘Poulcas036’, as observed in itsgrowth in in a field nursery in Marion County, Oreg. Observed plants are3 years of age, and were grown on their own roots. Color references aremade using The Royal Horticultural Society (London, England) ColourChart, 2001, except where common terms of color are used.

For a comparison, several physical characteristics of the rose variety‘Jacrite’, U.S. Plant Pat. No. 8,361 are compared to ‘Poulcas036’ inChart 1.

CHART 1 ‘Poulcas036’ ‘Jacrite’ Petal Count 35 25 Flower 50 to 60 mm 4.5to 5 inches Diameter (110 to 120 mm) Flower Color Upper surface: Thebase of The upper side of the petals is the petal is Yellow Group YellowGroup 6C on the inner 12A, middle zone is Yellow- petals. On the reverseside of Orange Group 14C, margins the petals, the inner petals are areRed Group 47B Yellow Group 6C while the and 47C. Lower surface: outerare Red Group 40D, Mid and basal zones are except at the petal basewhere Yellow-Orange Group 14C. they are Yellow Group 6C. Margins are RedGroup 47B. The base of the petals is Yellow Group 6C. The major color onthe upper side is Yellow Group 6C.

-   Flower and flower bud:    -   -   Blooming habit.—Continuous.        -   Flower bud.—Size: Upon opening, 23 mm in length from base of            receptacle to end of bud. Bud diameter is 12 mm. Bud form:            Ovoid. Bud color: As sepals divide petals are Yellow Group            13C, Red Group 45A, and Red Group 46C. Sepal inner surface:            Color: Yellow-Green Group 147C with intonations of            Greyed-Red Group 178B. Surface: Smooth with strong            pubescence. Sepal outer surface: Color: Yellow-Green Group            144A with weak intonations of Greyed-Red Group 178B.            Texture: Somewhat rough with many stipitate glands. Sepal            Shape: Apex: Cirrhose. Base: Flat at union with receptacle.            Sepal Margin: Margins have moderate foliaceous appendages on            three of the five sepals. Sepal size: 23 mm long by 6 mm            wide. Receptacle: Texture: Smooth. Shape: Urn shaped. Size:            7 mm in height by 7 mm wide. Color: Yellow-Green Group 144A            with intonations of Greyed-Red Group 178B. Pedicel: Surface:            Somewhat rough with small prickles. Length: 25 to 35 mm.            Diameter: 3 mm on average. Color: Yellow-Green Group 144A            with moderate anthocyanic pigments the color of Greyed-Red            Group 178A. Strength: Strong. Peduncle: Length: 20 to 25 cm.            Diameter: 3 to 4 cm. Color: Yellow-Green Group 144A with            moderate anthocyanic pigments the color of Greyed-Red Group            178A. Texture: Somewhat rough with many small prickles.        -   Flower bud development.—Flower buds are borne in clusters of            3 to 5 flower buds per stem, resembling a corymb.        -   Flower bloom.—Fragrance: Light floral scent. Duration: The            blooms have a duration on the plant of approximately 7 to 10            days. Petals fall cleanly away from plant after flowers have            fully matured. Size: Flower diameter is 50 to 60 mm when            open. Flower depth is 25 mm. Flower shape: General shape is            a high centered, semi double, with a high pointed center            which is tightly closed. Shape of flower, side view: Upon            opening the upper portion is flat. The lower portion is a            flattened convex.        -   Petalage.—Under normal conditions, flowers have 35 petals            total, 3 to 5 of which are petaloids.        -   Petal color.—Upon opening, outer petals Upper surface: The            base of the petal is Yellow Group 12A, middle zone is            Yellow-Orange Group 14C, margins are Red Group 47B and 47C.            Lower surface: Mid and basal zones are Yellow-Orange Group            14C. Margins are Red Group 47B. Upon opening, inner petals:            Upper surface: Yellow Group 12A with shaded intonations of            Orange-Red Group 26C at the margins. Margins have other            intonations of Red Group 47B. Lower surface: Yellow Group            13C with marginal spots of Red Group 43A. After opening,            outer and inner petals: Upper surface: Yellow Group 12A at            the petal base. Yellow-Orange Group 14C at the middle zone,            with intonations of Orange-Red Group 26C. Margins are            splashed with Red Group 47B. Lower surface: Yellow-Orange            Group 14C. The margins are Yellow-Orange Group 18D splashed            with Red Group 47B.        -   General tonality.—Open flowers are Yellow Group 11A and 13D            with intonations of Red Group 52A and 52D.        -   Petals.—Petal Reflex: Weak. Margin: Entire and uniform with            a point at the center. Weak undulations of margin observed.            Shape: Generally narrow elliptic. Apex shape: Cuspidate.            Base shape: Acute. Size: 25 mm (l)×28 mm (w). Texture:            Smooth. Thickness: Average.        -   Petaloids.—Quantity: 3 to 5. Shape: Obovate, with a rounded            apex and acute base. Color: Yellow Group 9B with intonations            of Yellow-Orange Group 23C on upper surface. Lower surface            is Yellow Group 12C and Yellow-Orange Group 22B. Size: 15 mm            (l)×11 mm (w).        -   Reproductive organs.—Pollen: None observed. Anthers: Size: 2            mm in length. Color: Yellow Group 11B. Quantity: 65 on            average. Filaments: Color: Yellow-Orange Group 14A. Length:            6 mm. Pistils: Length: 6 mm. Quantity: 35 on average.            Stigmas: Color: Greyed-Yellow Group 160B. Styles: Color:            Greyed-Yellow Group 160B. Location of stigmas: Level in            location relative to the length of the filaments and the            height of the anthers. Hips: None Observed.-   Plant:    -   -   Plant growth.—Upright, bushy. Plants are 40 cm in height,            and 40 cm wide.        -   Stems.—Color: Juvenile growth: Yellow-Green Group 144B with            anthocyanin the color of Greyed-Orange Group 176B. Mature            growth: Yellow-Green Group 144A. Length: On average, canes            are 30 cm from the base of the plant to the flowering            portion. Diameter: 4 mm. Internodes: On mature canes, there            is an average distance of 30 mm between nodes. Surface            Texture: Young wood: Smooth. Older wood: Rough.        -   Long prickles.—Incidence: 3 prickles per 10 cm of stem.            Size: Average length of prickles on mature stems is 6 mm.            Shape: Upper portion is linear. Lower portion is deep            concave. Color: Juvenile prickles: Greyed-Red Group 181 A.            Mature prickles: Greyed-Yellow Group 160A.        -   Plant foliage.—Compound leaf: 140 mm (l)×100 (w). Quantity:            3 leaves per 10 cm of stem on average. Leaf bearing angle to            the stem: 60 degrees. Color of juvenile foliage: Upper side:            Yellow-Green Group 144A. Lower side: Yellow-Green Group            144B. Anthocyanin: Greyed-Orange Group 175A generalized.            Color of mature foliage: Upper side: Yellow-Green Group            146A. Lower side: Yellow-Green Group 146B.        -   Plant leaves and leaflets.—Stipules: Size: 20 mm in length.            Quantity: 2 per compound leaf. Shape: Linear, slightly broad            based with outward extending apecies. Margins: Finely            serrated with few stipitate glands. Color: Yellow-Green            Group 144A. Petiole: Length: 20 mm. Diameter: 3 mm. Upper            surface: Color: Yellow-Green Group 144A with anthocyanin the            color of Greyed-Orange Group 176A. Lower surface: Color:            Yellow-Green Group 144B. Observations: Numerous stipitate            glands and prickles observed. Rachis: Length: 65 mm long.            Upper surface: Color: Yellow-Green Group 144A. Lower            surface: Color: Yellow-Green Group 144B. Observations:            Numerous stipitate glands and prickles observed. Leaflet:            Quantity: Normal number of leaflets leaves in middle of the            stem is 5 leaflets. Margins: Serrated. Size: Average size of            the terminal leaflet on normal leaves is 60 mm in length by            35 mm wide. Shape: Generally elliptical. Base: Rounded.            Apex: Mucronate. Texture: Somewhat rough. Thickness:            Average. Arrangement: Odd pinnate. Venation: Reticulate.        -   Glossiness.—Moderately glossy.        -   Disease resistance.—Above average resistance to powdery and            downy mildew, rust, black spot, and Botrytis under normal            growing conditions.        -   Cold hardiness.—The variety is tolerant to USDA Cold            Hardiness Zone 6.        -   Heat tolerance.—The variety has been found to be suitable            for climate conditions found in the American Horticulture            Society heat zone 7.

1. A new and distinct variety of rose plant of the Compact Floribundarose class named ‘Poulcas036’, substantially as illustrated anddescribed herein, due to its abundant yellow and red bi-color flowers,disease resistance, and extended period of bloom.